<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!---->
    <style>
        div {
            color: rgb(16, 195, 40);
            font-size: 14px;
            width: 100px;
            height: 30px;
            background: rgb(105, 209, 35);
            text-align: center;
            line-height: 30px;
            border-radius: 30px;
        }
    </style>
</head>

<body>
    我的第一个网页
    <div>
        华尔街之狼 </div>
</body>

</html>